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When an 8 ohm resistor is connected across a 12 volt supply the current flow is:

  a.   12 / 8 amps

  b.   8 / 12 amps

  c.   12 - 8 amps

  d.   12 + 8 amps
Your answer "c" is not correct. "a" is the right answer.

I = E / R
= 12 / 8 amps.

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